芳香族美 CH2 CH-COOH H2C-CH-COOH NH2 NH2 苯丙氨酸Phe 色氨酸Trp HO H2C-CH-COOH NH2 酪氨酸TyT wwww.themegallery.com LOGOwww.themegallery.com LOGO 芳香族类 CH2 CH C NH2 OOH 苯丙氨酸Phe N H CH COOH NH2 H2 C 色氨酸Trp 酪氨酸Tyr CH COOH NH2 HO H2 C